Evidence map›Paper›PMID 23573237›Full record

ArticlePloS one2013

Kras gene mutation and RASSF1A, FHIT and MGMT gene promoter hypermethylation: indicators of tumor staging and metastasis in adenocarcinomatous sporadic colorectal cancer in Indian population.

Rupal Sinha, Showket Hussain, Ravi Mehrotra, R Suresh Kumar, Kapil Kumar, Pankaj Pande, Dinesh Chandra Doval, Seemi Farhat Basir, Mausumi Bharadwaj

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 3 pooled it
4.2field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 3 syntheses or guidelines pooled it, 61 citations in OpenAlex.

  1. Clinicopathological significance and potential drug target of O6-methylguanine-DNA methyltransferase in colorectal cancer: a meta-analysis.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Pooled it
  2. Prognostic value of MGMT methylation in colorectal cancer: a meta-analysis and literature review.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Pooled it
  3. Pooled it
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  5. The role of epigenetics in cancer: From pathways to the clinic.Journal of family medicine and primary care · 2025
    Review
  6. Article
  7. International journal of molecular sciences · 2023
    Article
  8. Article
  9. Review
  10. Aberrant Promoter Hypermethylation ofIndian journal of surgical oncology · 2021
    Article
  11. Epigenetically inactivated RASSF1A as a tumor biomarker.Bosnian journal of basic medical sciences · 2021
    Review
  12. Article
  13. A strategy for the identification of paracrine regulators of cancer cell migration.Clinical and experimental pharmacology & physiology · 2020
    Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Rupal SinhaDepartment of Research, Rajiv Gandhi Cancer Institute and Research Centre, Delhi, India.
Showket Hussain
Ravi Mehrotra
R Suresh Kumar
Kapil Kumar
Pankaj Pande
Dinesh Chandra Doval
Seemi Farhat Basir
Mausumi Bharadwaj
Institute of Cytology and Preventive Oncology · INRajiv Gandhi Cancer Institute and Research Centre · INJamia Millia Islamia · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveColorectal cancer (CRC) development involves underlying modifications at genetic/epigenetic level. This study evaluated the role of Kras gene mutation and RASSF1A, FHIT and MGMT gene promoter hypermethylation together/independently in sporadic CRC in Indian population and correlation with clinicopathological variables of the disease.

methodsOne hundred and twenty four consecutive surgically resected tissues (62 tumor and equal number of normal adjacent controls) of primary sporadic CRC were included and patient details including demographic characteristics, lifestyle/food or drinking habits, clinical and histopathological profiles were recorded. Polymerase chain reaction - Restriction fragment length polymorphism and direct sequencing for Kras gene mutation and Methylation Specific-PCR for RASSF1A, FHIT and MGMT genes was performed.

resultsKras gene mutation at codon 12 & 13 and methylated RASSF1A, FHIT and MGMT gene was observed in 47%, 19%, 47%, 37% and 47% cases, respectively. Alcohol intake and smoking were significantly associated with presence of Kras mutation (codon 12) and MGMT methylation (p-value <0.049). Tumor stage and metastasis correlated with presence of mutant Kras codon 12 (p-values 0.018, 0.044) and methylated RASSF1A (p-values 0.034, 0.044), FHIT (p-values 0.001, 0.047) and MGMT (p-values 0.018, 0.044) genes. Combinatorial effect of gene mutation/methylation was also observed (p-value <0.025). Overall, tumor stage 3, moderately differentiated tumors, presence of lymphatic invasion and absence of metastasis was more frequently observed in tumors with mutated Kras and/or methylated RASSF1A, FHIT and MGMT genes.

conclusionSynergistic interrelationship between these genes in sporadic CRC may be used as diagnostic/prognostic markers in assessing the overall pathological status of CRC.

Indexed as

Acid Anhydride HydrolasesAdenocarcinomaAdultAgedBis(5'-adenosyl)triphosphataseColorectal NeoplasmsDietDNA MethylationDNA Modification MethylasesDNA Mutational AnalysisDNA Repair EnzymesFemaleHumansIndiaLife StyleMaleAcid Anhydride HydrolasesBis(5'-adenosyl)triphosphataseDNA Modification MethylasesDNA Repair EnzymesKRAS protein, humanMGMT protein, humanNeoplasm ProteinsProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras ProteinsRASSF1 protein, humanTumor Suppressor Proteins

Identifiers

PMID23573237
PMCPMC3616004
OpenAlexW2095506856

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.